Riveting-machine.



A. etissER.

RIVETING MACHINE.

APPLICATION FILED FEB. I6, I9I4.

Patented Apr. 25,1916.

3. SHEETS-SHEET l- M {NW4 w/mga K g W THE COLUIIIBIA.PLANOGRAPH co WASHINGTON, 0 c

A. GUSSER.

'RIVETING MACHiNE.

APPLICATION FILED FEB. 16, 1914.

Patented Apr. 25, 1916.

3 SHEETS-SHEET 2.

THB COLUMBIA PLANOGMPH c0., WASHINGTON. D. c.

A. GUSSER.

RIVETING MACHINE.

APPLICATION F|LED FEB-16. 1914.

' Patented Apr. 25, 1916.

3 SHEETS-SHEET 3.

ADOLF 'GfiSSER, OF IBONN-ON-TI'IE-RHINE, GERMANY, ASSIGNOR T0 WILHELM K'NAPZP, OF EIGKEL, GERMANY.

RIVETING-MAGHINE.

Application filed February 16, 1914.

To all whom it may concern:

Be it known that 1, Avon]? Gossnn, a citizen of the German Empire, residing. at Bonn-on-the-Rl1ine, in Germany, have invented a certain new and useful Riveting- Machine, of which the following is a specification.

This invention relates to riveting machines, such as are especially used for riveting small articles.

The principal characteristic of the invention. lies in the fact that, in order to reduce wear of the sensitive parts of the machine, and nevertheless to secure rapid Work and ease of manipulation, the action of the riveting apparatus is temporarily interrupted at intervals, but can be restarted by a single movement. The drive remains continually in readiness and is only transmitted to the riveting parts when re quired, a lever being moved for this purpose.

The riveting itself is performed in a known manner by means of a striker which is provided with a hammer, and rides in its guide on cams, the striker being propelled toward the work by spring action. The arrangement of the riveting mechanism itself does not form part of the invention.

The invention consists therein, that by a single lever movement the riveting apparatus and the work table with the anvil are moved together toward the work, the drive mechanism being connected at the same time to the riveting apparatus, or the parts are moved away from the work, and the drive is disconnected. Arrangements for this purpose may be contrived in variousways. The riveting apparatus can be moved toward the anvil and work, or the anvil and work can be moved toward the riveting apparatus. In both cases the movement such that parts of different thicknesses can be riveted by the operation. This is of importance by reason of the fact that it enables the operation to be performed without idle movement and loss of power.

If the riveting apparatus is moved toward the work a vertical driving shaft for the riveting apparatus may in some way be suspended from a toggle lever, which can be extended and contracted by means of a hand or foot lever, and the latter may be arranged to throw the driving mechanism into and out of gear. The driving mecha- Specification of Letters Patent.

Patented Apr. as, rare.

Serial No. 819,075.

nism may comprise a pair of friction wheels, one driving the other, which is fixed to the vertical. shaft. The actuating lever in this case, in extending the toggle lever, lowers the riveting apparatus and brings the friction wheels into contact with each other.

Another arrangement which may be adopted, employing the same principle, includes a belt drive for the riveting apparatus, the driving shaft having a clutch member fixed to it, connected to one arm of a double armed lever-,the other arm of which is connected by means of a link to a hand or foot lever. The other clutch member loosely embraces the shaft, so that the lowering of the latter causes the clutch to be engaged, whereupon the shaft is driven by a pulley fixed to the second-mentioned clutch member.

If the work is moved toward the riveting apparatus the housing of the latter remains stationary, only the hammer being actuated. In this case also the riveting action. only takes place when a hand or foot lever is actuated. The machine may be con structed for single or multiple operation.

The invention is illustrated in the an neXed drawings, showing several embodiments thereof.

Figures 1 and 2 are a side view and a front View of a machine in which the drive is effected from the side by means of fric tion wheels, a toggle lever being extended and contracted. Fig. 3 shows the usual riveting a 'iparatus to a larger scale. partly in longitudinal section. Fig. -'l' shows another construction of the riveting machine. Figs.

6 and 7 are a front view, side view and plan (the latter with the frame in section), of a multiple riveter, wherein the work table is moved toward the riveting apparatus.

Referring in the first instance more particularly to the construction shown in Figs. 1 and 2, the frame 1 may be of any convenient design, for example of the kind used for vertical drilling machines. The work table is designed according to re-- quirements, and may be part of the frame 1, as shown in Figs. 1 and 2, or may be adjustable on the frame. as shown in Fig. 4:, or may move to and from the riveting! apparatus when a hand or foot lever aw tuated, as shown in Figs. 5 and 6. The anvil 3 is vertically adjustable by means of a screw spindle 4 in the construction shown in Figs. 1- and 2, whereas in the construcmay be of the usual construction, guided in a fixed housing 6, its jacket being prevented from turning with the shaft 9 by a screw 8 engaging a groove 7. The riveting tool 10 is actuated by turning a so-called hammer 11, which is acted on by a spring 12 and travels over a cam 13,whereby the riveting tool 10 is alternately raised and lowered. The riveting apparatus 5 is connected to the shaft'9, which is suspended at the top from a toggle lever'l4. The latter is pivoted at 15 to a bearing 16 on the frame 1. The connection of the shaft to the toggle is such as to allow rotation of the shaft, the upper end of the latter being mounted in a journal box 17, a constriction 18 being provided, en-

gaged with studs 19.

On the shaft 9 there is a vertically adjustable friction wheel 20; 21 is a horizontal driving shaft, to which is fixed a pulley 22, and on which is slidable a friction wheel 23. The movement of the latter toward the wheel 20 is effected by means of a hand or foot lever 24, which is also adapted to extend and contract the toggle lever 14. The lever 24 is pivoted at 25 to the frame and is connected to the toggle by a link 26. A spring 27 connected to the lever 24 returns same to normal position after actuation. By actuation of the lever 24 the toggle is extended and the friction wheels 23 and 20 are brought into contact with each other, so that the shaft 9 is driven and the riveting tool is actuated. On release of the lever 24 the drive ceases and the shaft 9 ascends.

In the construction shown in Fig. 4 the action of the riveting apparatus is also started and stopped by means of the hand or foot lever. In this case the lever 24 is much shorter, and is designated 24, the pivot 25 being at the foot of the frame 1. A weight 28 is used instead of a spring for returning the lever 24 and riveting apparatus to normal position. The lever 24 is connected by a rod 29 to a double armed lever 30, pivoted at 31 to the frame 1, and connected to the shaft 9 in such a manner as to allow rotation of the latter, as in the constructionshown in Figs. 1 and 2. Below the connection, a friction clutch member 32 is fixed to the shaft 9, above a clutch member 33 embracing the shaft but mounted on the frame. To the member 33 is fixed a pulley 34, which is driven by means of a belt from the driving shaft 21*, the belt working on a guide roller 35.

In the construction shown in Figs. 5 and 6 the work table, with the work, is moved to and from the stationary riveting apparatus. A weighted lever 24" is provided, by which the table is raised and lowered, the movement being transmitted from the lever by cords 37, 38 working on rollers 35, 3(3 and connected to a toggle lever 39 pivoted at 40 to the frame 1; at 41 the toggle is pivoted to the work table 2. The latter is a sliding carriage, balanced by weights 42. The rii'eting apparatus, fixed to the frame, is of the construction already described. The driving shaft is a flexible shaft 9, with a friction wheel 20 at its upper end. The drive is effected by means of a horizontal shaft 21 and a belt, which passes over a roller 43 to a pulley 45 fixed to a vertical shaft 44, to which is also fixed a friction wheel 23. The driving mechanism is thrown into gear by means of a lever 24*, which actuates bevel gear wheels 46, 47. The wheel 47 is fixed .to a vertical shaft 48, which actuates a lever 49 at its upper end. A rod 50 connected to the lever 49 rotates a plate 52 mounted on a table 51 on the frame 1. To this plate a lever 54 is eccentrically pivoted at 53, and the lever is connected to the shaft of the friction wheel 20, which is slidable in a slot 55 in the table 51. hen the lever 24 is moved the cord 37 is pulled downward and the toggle 39 is extended, whereby the table 2 is moved toward the riveting apparatus; at the same time the bevel wheel 46, fixed to the pivot 56 of the lever, is turned, and the shaft 48 is thus caused to actuate the rod 50 and lever 54, whereby the friction wheels 20 and 23 are brought into engagement with each other and the riveting apparatus is actuated. On release of the lever 24 the same is returned to normal position by a weight or spring, and the drive ceases.

As shown in Figs. 5 to 7 the riveting apparatus may be multiplied on one frame. The construction of the frame may be varied to suit requirements, and the whole arrangement may be constructed to tilt over, if desired.

Claims:

1. A riveting machine, comprising a work support, a heading tool, one of said parts being adjustable relatively to the other part, a shaft adapted to rotate and reciprocate the heading tool, a coupling member on the shaft, a driving member, and common means for effecting a relative vertical movement between work support and heading tool, and for coupling the driving member to the shaft-coupling member.

2. A riveting machine, comprising a work support, a heading tool, one of said parts being adjustable relatively to the other part, a rotatable shaft, a spring influenced hammer carried by the heading tool and actuated by the shaft, said hammer being adapted to reciprocate said tool, and common means for effecting a relative vertical movement between work support and heading tool and for rotating the shaft.

3. A riveting machine, comprising a Work support, a heading tool, one of said parts being adjustable relatively to the other part, a rotatable shaft, a spring influenced hammer carried by the heading tool and actuated by the shaft, said hammer being adapted to reciprocate said tool, a coupling member on the shaft, a driving member, and common means for effecting a relative vertical movement between Work support and heading tool, and for coupling the driving member to the shaft-coupling member.

4. A riveting machine comprising a work support, a heading tool, a shaft adapted to rotate and reciprocate said tool, means for vertically adjusting the shaft, means for rotating the shaft, and common means for actuating the shaft adjusting means, and the shaft rotating means.

5. A riveting machine comprising a work support, a heading tool, a shaft adapted to rotate and reciprocate said tool, a

member adapted to vertically adjust the K shaft, a first coupling member on the shaft, a driving member, and common means for effecting a vertical movement of the shaft, and for coupling the driving member to the shaft-coupling member.

6. A riveting machine comprising a work support, a heading tool, a rotatable and vertically reciprocative shaft, a springinfluenced hammer carried by the heading tool and actuated by the shaft, said hammer being adapted to reciprocate said tool, a lever, coupling means between lever and shaft, a rod adapted to actuate the lever, a friction disk on the shaft, a slidable friction pulley, means for throwing said pulley into engagement with said disk, and common means for operating said rod, and for ad vancing the friction pulley against the friction disk.

ADOLF GGSSER.

Uepzles of this patent may be obtained for five cents each, by addressing the Commissioner-of Watenta,

aahington, JD. 6. 

